111540658123 has 2 divisors, whose sum is σ = 111540658124. Its totient is φ = 111540658122.

The previous prime is 111540658091. The next prime is 111540658147. The reversal of 111540658123 is 321856045111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111540658123 - 2⁵ = 111540658091 is a prime.

It is not a weakly prime, because it can be changed into another prime (111540659123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55770329061 + 55770329062.

It is an arithmetic number, because the mean of its divisors is an integer number (55770329062).

Almost surely, 2^111540658123 is an apocalyptic number.

111540658123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111540658123 is an equidigital number, since it uses as much as digits as its factorization.

111540658123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 111540658123 in words is "one hundred eleven billion, five hundred forty million, six hundred fifty-eight thousand, one hundred twenty-three".